/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/NiagaraSystemViewModel.h
Rename a parameter within the RenameScope and update associated tracking metadata such as Parameter Definition synchronization.
bool RenameParameter ( const [FNiagaraVariable](API\Plugins\Niagara\FNiagaraVariable) TargetParameter, const [FName](API\Runtime\Core\UObject\FName) NewName, [ENiagaraGetGraphParameterReferencesMode](API\Plugins\NiagaraEditor\ViewModels\ENiagaraGetGraphParameterReferen-) RenameScopeMode )